July weather forecast
Acton, MT

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Weather in July

July, the same as June, is another warm summer month in Acton, Montana, with an average temperature fluctuating between 85.5°F (29.7°C) and 60.6°F (15.9°C).

Temperature

July, known for its average high temperature of 85.5°F (29.7°C) and an average low temperature of 60.6°F (15.9°C), is the warmest month.

Heat index

The heat index value for July is appraised at a hot 86°F (30°C). Prolonged activity during exposure might result in a state of fatigue and cause heat cramps.
Heat index details are generally centered around shaded locations and a mild breeze. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.

Humidity

In July, the average relative humidity is 42%.

Rainfall

The month with the least rainfall is July, when the rain falls for 7.4 days and typically collects 0.43" (11mm) of precipitation.

Snowfall

In Acton, snow does not fall in June through August.

Daylight

In July, the average length of the day is 15h and 19min.
On the first day of the month, sunrise is at 5:28 am and sunset at 9:08 pm. On the last day of July, sunrise is at 5:57 am and sunset at 8:44 pm MDT.

Sunshine

With an average of 11.9h of sunshine, July has the most sunshine of the year in Acton.

UV index

The month with the highest UV index is July, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 7 during July leads to these advisories:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the hottest in Acton?

In Acton, July is the month with the highest recorded average temperatures, measuring a high of 85.5°F (29.7°C) and a low of 60.6°F (15.9°C).

How hot does it get in Acton in July?

In July, in Acton, the average high-temperature is 85.5°F (29.7°C), and the average low-temperature is 60.6°F (15.9°C). In July, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 86°F (30°C).

What is the average humidity in July in Acton?

The average relative humidity in July in Acton is 42%.

What is the driest month in Acton?

The month with the least rainfall is July, when the rain falls for 7.4 days and typically collects 0.43" (11mm) of precipitation.

How much does it rain in Acton in July?

In Acton, Montana, in July, during 7.4 rainfall days, 0.43" (11mm) of precipitation is typically accumulated.

When it does not snow in Acton?

June through August are months without snowfall in Acton, Montana.

How many hours of daylight does Acton have in July?

In Acton, Montana, the average day length in July is 15h and 19min.

What time are sunrise and sunset in July in Acton?

In July, on the first day of the month, sunrise is at 5:28 am and sunset at 9:08 pm. On the last day of the month, in Acton, Montana, sunrise is at 5:57 am and sunset at 8:44 pm MDT.

What month has the most sunshine in Acton?

With an average of 11.9h of sunshine, July has the most sunshine of the year in Acton, Montana.

How long on average sun shines in July in Acton?

The average sunshine duration in July in Acton is 11.9h.

When is the highest UV index in Acton?

The month with the highest UV index is July, with an average maximum UV index of 7.

How high is the UV index in July in Acton?

In Acton, Montana, the average daily maximum UV index in July is 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Acton, MT

Average temperature in July - Acton, MT
  • Average high temperature in July: 85.5°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (31.1°F).

  • Average low temperature in July: 60.6°F

The months with the highest average low temperature are July and August (60.6°F).
The coldest month (with the lowest average low temperature) is February (18.3°F).

Average pressure in July
Acton, MT

Average pressure in July - Acton, MT
  • Average pressure in July: 29.91"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

Average wind speed in July
Acton, MT

Average wind speed in July - Acton, MT
  • Average wind speed in July: 7.1mph

The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

Average humidity in July
Acton, MT

Average humidity in July - Acton, MT
  • Average humidity in July: 42%

The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (40%).

Average rainfall in July
Acton, MT

Average rainfall in July - Acton, MT
  • Average rainfall in July: 0.43"

The wettest month (with the highest rainfall) is May (2.24").
The driest month (with the least rainfall) is July (0.43").

Average rainfall days in July
Acton, MT

Average rainfall days in July - Acton, MT
  • Average rainfall days in July: 7.4 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (5.6 days).

Average snowfall in July
Acton, MT

Average snowfall in July - Acton, MT
  • Average snowfall in July: 0"

The month with the highest snowfall is February (6.61").
The months with the least snowfall are June, July and August (0").

Average snowfall days in July
Acton, MT

Average snowfall days in July - Acton, MT
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (14.3 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in July /
Average sunshine in July
Acton, MT

Average daylight in July / Average sunshine in July - Acton, MT
  • Average daylight in July: 15h and 2min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in July: 11h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).

Average sunshine days in July
Acton, MT

Average sunshine days in July - Acton, MT
  • Average sunshine days in July: 21 days

The month with the most sunshine days is September (21.1 days).
The month with the least sunshine days is April (9.8 days).

Average UV index in July
Acton, MT

Average UV index in July - Acton, MT
  • Average UV index in July: 7

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in July
Acton, MT

Average cloud cover in July - Acton, MT
  • Average cloud cover in July: 14

The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 14).

Average visibility in July
Acton, MT

Average visibility in July - Acton, MT
  • Average visibility in July: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Acton, Montana, USA

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